Exchange Private Information Store is Priv.edb file. This file is the only copy of messages and other database items that are stored in users' mailboxes. When this file becomes corrupt, you may observe failure of typical database operations. For example, when you try to backup the database, Exchange may report an unexpected error while refusing to complete the operation. In such situations, it is essential that you delete the corrupted database file and restore from the last on line backup. But if backup seems to be invalid or unusable, you need to resort to exchange server recovery.
An Exchange Private Information Store can get corrupt for several reasons such as unexpected power outage, antivirus scanning, log file corruption, and more. But, apart from these reasons, corruption can also occur at the time of Exchange Information Store usage or backup. To illustrate such problems, consider an instance when you try to backup the Information Store. The backup process fails and you receive an error message:
“Private Information Store (Database_Name) is a corrupt file. This file cannot verify.”
where, 'Database_Name' refers to the name of affected database.
The above error suggests that Private Information Store of Exchange Server is corrupted. During backup, the tool verifies the integrity of database, that it is about to backup. If the database file fails the integrity test, the above error may result.
To solve the described issue, you need to apply one or more of the following solutions:
Execute eseutil/ d command to defragment the priv.edb database. This can clear minor corruption issues with the database file.
Restore from the last backup
Run Isinteg utility to check and repair the integrity of database. You are recommended to backup the database before running this command
Use a third-party exchange recoverysoftware to repair the database and to extract the data from the corrupted information store
An exchange server recovery utility can scan the corrupted Information Store database file using powerful, yet safe, algorithms. With an interactive display, these utilities are easy to operate without any prior requirement of technical skills. In addition, you can use these recovery solutions after any sort of corruption that has made the database unmountable or has reported errors.
Stellar Phoenix Mailbox Exchange Recovery is a secure and effective tool that repairs and restores corrupted Exchange database and extracts all user mailboxes in individual *.pst files. The Exchange Recoveryutility supports Exchange Server 2007, 2003, 2000, and 5.5. The tool is compatible with Windows 7, Vista, XP, 2003, and 2000.